baber/WOPTO huggingface dataset:
Patent GB-401882-A (GB)
Title: Gas operated machine guns and the like
IPC: F41A5/28
Filed: 1932-11-02
Abstract: 401,882. Automatic firearms. CESKOSLOVENSKA ZBROJOVKA AKCIOVA SPOLECNOST V. BRNE, and STALLER, K., 7, U. Lazaretu, Brunn, Czecho Slovakia. Nov. 2, 1932, No. 30929. [Classes 92 (ii) and 119.] The gas-pressure motor of an automatic gun is combined with means, coacting with the cylinder wall but not forming part of the motor, for maintaining the combustion sediment in a loose state, and is further provided with means which enable the loosened sediment to be removed automatically by the combustion gases. In one form, the motor comprises a piston 13 and cylinder 14, Figs. 1, 3 and 4, the latter being provided with a number of tapered circumferential cavities 20. The cylinder is mounted, by means of a bayonet joint, within a ring 15 of a bracket 30 which is connected to the gun support 17. The bayonet joint comprises three lugs 46.. 48 on the cylinder engaging with three lugs 40 .. 42 on the ring 15, the sizes of the lugs being different and such that rotation of the ring through 180, from the normal position shown, is necessary to effect the disconnection of the parts. The forward end of the cylinder is closed by an extension 8 of a sleeve 2 which is detachably secured to the barrel 1 by a bolt 3 and houses a regulating stopper 10 ; the barrel is detachably secured to the gun. In operation, the cylinder moves relatively to the ring 15 during the aiming movements of the gun, and by vibration during firing, and the edges 28 of the cavities 20 loosen any sediment accumulating on the walls of the ring. The loosened sediment is discharged by the gases through cavities 50 in the cylinder walls. A shield 53 is provided behind these cavities to protect the operator from the escaping gases and combustion sediment. In a modification, the bayonetjoint connection between the members 14, 15 is dispensed with and these parts are thereby capable of relative longitudinal and rotational movement. In a further modification, the ring 15, Fig. 7, is disposed within the cylinder 14, and the cavities 20 are provided in the ring. Instead of the relative movements between the members 14, 15 being produced automatically, it may be produced in a completely positive manner.
Patent GB-742161-A (GB)
Title: Improvements relating to the propulsion of water craft
IPC: B63H5/14
Filed: 1953-11-09
Abstract: 742,161. Marine craft propulsion. MASON, G. H. Nov. 9, 1954 [Nov. 9, 1953], No. 30956/53. Class 114. In a means for propelling watercraft comprising at least one pair of screws mounted outrigger fashion from the craft, one of the or of each pair at each side, being capable of vertical movement, each screw 5 is located in a thrust casing 4 carrying a member 11 constructed or arranged to produce vertical downward thrust which increases with the thrust produced by the screw, thereby urging the casing and screw assembly down. Each screw 5 is driven by articulated shafting and gearing 10 from an engine carried in the craft. The screw shaft 6 is mounted in a housing 8 supported within the bore of the casing 4 by a spider-like member 9. said bore tapering slightly from front to rear The float 11 secured to the casing 4 comprises a vertical fin 12 and vanes 13 so that at low speeds the assemblies are near the surface and extend one from each side and as speed increases they lower and close together near the craft. The vertical movement of the assemblies may be power-controlled or assisted, e.g. by hydraulic power. The casings may be constructed to provide for altering the angle of thrust with respect to the fore and aft direction of the craft for steering purposes. The screw blades may have a feathering mechanism. In a preferred arrangement the driving shaft for the blades is in two parts capable of relative axial movement (e.g. by way of spigot and socket splined joint) and the section of the shaft remote from the blades is driven through crown and pinion or other gearing by means of a flexible drive. The section which carries the blades is mounted for axial movement controlled through a flexible drive by way of a wheel and worm assembly, and the front end of this section carries a gear member which co-operates with a gear member on the inner end of a shaft carrying a blade. Thus the blades extend radially from the nose and each is mounted on a short shaft the inner end of which carries a wheel which engages with a member carried on the end of the second shaft section so that rotation of the latter causes rotation of the blade assembly while axial movement causes rotation of the blade carrying stub shafts on their axes whereby feathering is effected.
Patent GB-383407-A (GB)
Title: An improved adjustable backrest or back support for a seat
IPC: A47C7/44
Filed: 1931-11-10
Abstract: 383,407. Seat adjustments. TANSAD CHAIR CO. (1931), Ltd., Foundry Lane, Birmingham, and GABB, A. H., 67, Lodge Causeway, Fishponds, Bristol. Nov. 10, 1931, No. 31103. [Class 52 (ii).] A back-rest for a seat is mounted upon a normally substantially vertical arm f adapted to be adjusted about an arcuate face b<2> provided upon a fixed protuberance b and to be maintained in adjusted position by means of a clamp e on a pivotal link c. When the clamp e is loose, the arms f may be adjusted vertically and the link c may be swung about its pivot c<1>.
Patent GB-671042-A (GB)
Title: Improvements in or relating to a process for the manufacture of amino acids
Filed: 1948-12-01
Abstract: In a process for the selective separation of lysine, arginine and histidine from a hydrolysed protein containing them and other amino acids, the pH value of the hydrolysate is adjusted to at least 7.5 but not above a value at which lysine and arginine are substantially completely absorbed and the hydrolysate is then passed in contact with a body of loose, particulation exchange material which operates in the salt cycle whereby the lysine and arginine of the hydrolysate are retained in the ionexchange material while the histidine remains in the effluent for subsequent separation.  The effluent may then be adjusted to a pH value between 5 and 6 and passed in contact with a second body of loose particulate cation-exchange material whereby the histidine contained in the first effluent is retained in the second body of cation-exchange material, and the other amino-acids (from the protein hydrolysis) remain in the effluent from the second body of cation-exchange material.  The absorbed amino acids may be eluted as their monohydrochlorides with a salt solution, e.g. calcium chloride, Glauber salt, or, preferably sodium chloride. The mixed lysine and arginine salts are separated from, e.g. sodium chloride by concentration in vacuo, the addition of alcohol, and filtration of the hot solution from precipitated salt.  On cooling lysine monohydrochloride precipitates and is filtered off.  The arginine in the filtrate may then be obtained by evaporation or by precipitation with flavianic or by sulphonic acids, e.g. naphthalene b -sulphonic acid or 3,4-dichloro-benzene sulphonic acid.  The histidine eluate is similarly freed from salt.  The effluent from the histidine adsorption may be subjected to further ion-exchange processes to separate dicarboxylic amino acids, e.g. citrulline and hydroxylysine. In examples the process is applied to mixed amino acids obtained by hydrolysing (1) hog's blood, or protein separated therefrom by passing live steam; (2) wheat germ protein; (3) casein: (1) yields pure 1(+)lysine and 1(-)histidine and crude arginine.  In (2) the eluate containing crude arginine is purified by crystallization of the naphthalene b -sulphonic acid or 3,4-dichlorobenzene sulphonic acid salt.  In (3) the p  casein, after hydrolysis with HC1, the hydrolysate is concentrated by boiling and then de-acidified in a column containing anion-exchange material to remove aspartic and glutamic acids and any residual HC1.  These acids may be recovered by elution.
Patent GB-397095-A (GB)
Title: Process for tin-soldering aluminium alloys
IPC: B23K35/00
Filed: 1931-11-11
Abstract: To enable aluminium or aluminium alloys to be tin-soldered, the metal is first coated with a metal such as nickel or chromium which can be tin-soldered and finally with a layer of metal such as cadmium to protect it against corrosion.  The aluminium is preferably pickled first in caustic soda and then in nitric acid, rinsed, dried, exposed to a sand blast, and coated with a layer of pulverulent iron by treating with a hot solution of ferric chloride.  The coating of chromium or nickel is then applied preferably electrolytically, for example nickel may be deposited by electrolysis from a bath of nickel sulphate and chloride acidulated with boric acid.  The final coating is also applied preferably by electrolysis, and may consist of cadmium deposited from a neutral cyanide bath.  The process is stated to be particularly applicable to the treatment of duralumin sheets for the construction of aeroplane radiators or water feeders.
Patent GB-189643-A (GB)
Title: Improvements in or relating to joints for artificial limbs
IPC: A61F2/66
Filed: 1921-11-22
Abstract: 189,643. Desoutter, C. Nov. 22, 1921. Limbs, artificial. - A hinge-pin 14 for the joint of an artificial limb is of tubular form, either throughout its length, or at its ends only, and extends across the casing 10 of the limb. The pin 14 is carried by plugs 13 formed on thin carrying-plates 12 and inserted through holes 11 in the casing 10, on the inside of which, at each side, is a thin washer-plate 15 formed with a boss 16 engaging the aperture in the casing. The plug and inner plate may be of aluminium, while the pin is preferably of steel and may be serrated at its ends, both inside and outside, in order to engage the plug and the inner plate firmly to prevent turning. In a modification, the plate carrying the plug also carries a boss engaging the aperture in the casing, the inner plate in this case being plain.
Patent GB-885711-A (GB)
Title: Improvements in or relating to electro-magnetically operated mechanical driving means
Inventor: OLIVER GEORGE FRANCIS NORRIS
IPC: H02K33/04
Filed: 1956-10-15
Abstract: 885,711. Reciprocating motors. OLIVER PELL CONTROL Ltd. Jan. 13, 1958 [Oct. 15, 1956], No. 31345/56. Class 35. A vibratory electric motor, e.g. for a shaver, comprises an E-shaped stator and two opposed armatures 4a, 4b hinged at 5a, 5b mechanically coupled so that their motions are equal and opposite. The armatures bridge the gaps between the side limbs 1 and the centre limb 2 of the stator. A.C. or intermittent D.C. in coil 3 causes each armature to be attracted towards the centre against a spring 8. The armatures are coupled by extensions 9a, 9b either to a centrally pivoted lever or to a ring 10, e.g. of nylon, rotatably mounted on a boss 11. A cutter 17 may be connected to one armature by a member 18 (the other armature carrying a balance weight) or to the coupling lever or ring, or there may be two cutters, one to each armature. The Provisional Specification states that the armatures may alternatively be mounted on trident springs, thus eliminating the pivots 5a, 5b and the spiral spring 8.
Patent GB-1348754-A (GB)
Title: Jet dyeing foam control and composition therefor
IPC: D06P1/613
Filed: 1972-07-05
Abstract: 1348754 Polyether - polysiloxane antifoam compositions DOW CORNING CORP 5 July 1972 [15 May 1972] 31472/72 Heading C3T An antifoam composition consists of (1) 40- 98À94 wt. per cent of a polyoxyalkylene polysiloxane of the formula wherein R is a C 1-10  hydrocarbon radical free of aliphatic unsaturation, G is a structure where D is a C 1-30  alkylene radical, R<SP>1</SP> is a C 2-10  alkylene radical, m is at least 1, and A is an end group, a is 0 or 1, b is 0-50, c is 1-50 and n is 12 or more; (2) 0À5-5 wt. per cent of a polydimethylsiloxane liquid of at least 20 cS./ 25 C. viscosity; (3) 0À05-5 wt. per cent SiO 2 ; (4) 0À01-0À4 wt. per cent of a resin consisting of SiO 2  and Me 3 SiO 0À5  units in a ratio of 1 : 0À4- 1-2; and (5) 0À5-10 wt. per cent of a copolymer of units SiO 2 , Me 3 SiO 0À5  and Me 2 QSiO 0À5  where Q is a polyoxypropylene or polyoxyethyleneoxypropylene radical of MW 2000- 6000 attached to Si via a Si-C bond, the ratio of SiO 2  units to the others being 1 : 0À4-1À2 or the reaction product of a 1 : 0À4-1À2 copolymer of units SiO 2  and Me 3 SiO 0À5  with a hydroxypolyoxypropylene or polyoxypropyleneoxyethylene polymer of MW 2000-6000, and optionally (6) up to 10 wt. per cent of a solvent. In the examples antifoam compositions are prepared from 86-94 wt. per cent of (A) G being -(CH 2 ) 3 (OC 2 H 4 ) 24 (OC 3 H 6 ) 24 OOC.CH 3 ; 3-7 wt. per cent of (B) a reaction product from an SiO 2 /Me 3 SiO 0À5  copolymer and a hydroxypolyoxypropylene polymer of MW 4100 or 3800; 1-5 wt. per cent of (C) a mixture of 88 wt. per cent polydimethylsiloxane of viscosity 1000 cS/25 C., 10% SiO 2  (precipitated) and 2% SiO 2 /Me 3 SiO 0À5  copolymer, and 2-4% of (D) Me 3 SiO(Me 2 SiO) 10 (MeGSiO) 3 SiMe 3  wherein G is -(CH 2 ) 3 (OC 2 H 4 ) 12 OH.
Patent GB-475837-A (GB)
Title: Improvements in semi-rotary engines
IPC: F01C9/00
Filed: 1936-11-17
Abstract: 475,837. Semi - rotary engines. BLOCKER, R. H. Nov. 17, 1936, No. 31498. [Class 110 (ii)] A steam engine has an oscillating piston 45 secured to a shaft 44, two inlet valves 10 of the poppet-valve type and two similar poppet valves 110 for dealing with the exhaust steam. Asbestos packing 79 insulates the working chamber 5 from the atmosphere. Each valve is balanced. by admitting steam through a byepass 20 to behind a piston 18. The valves are actuated by rocker arms 26 through cams 33, 133, which control the inlet and exhaust valves respectively. A sleeve 32 is supported on rollers 36 in grooves, so that axial adjustment of the sleeve, through a finger 35, alters the timing of the valves as the cam surfaces vary. A connecting rod 42 is attached to an oscillating crank 43 at the lower end, and drives a rotary power shaft 31 through a crank 41. A flywheel 39 and a pulley 40 are secured to the shaft 31. A governor 60, driven.through bevel gearing, may secure axial movement of the part 76 by means of rack and pinion gear to regulate the engine speed. A sealing strip 48 seals the upper part of the piston 45. Side packing pieces 51 are held in place by limbs 80, and support packing strips 50 on bevelled toe pieces 84. Oil holes 74 are provided for lubrication purposes, and holes 95 and pipe 52 for draining. A link 92 may be used to actuate a working device with oscillating motion.
Patent GB-1473500-A (GB)
Title: Valve
IPC: F16K1/10
Filed: 1973-07-03
Abstract: 1473500 Valves IMPERIAL CHEMICAL INDUSTRIES Ltd 20 June 1974 [3 July 1973] 31564/73 Headings F2V and F2T The spindle in a burette tap is provided with an annular groove in which is located a resilient ring 13 and the end of the spindle is covered with a plastics sheath 14 with thin side walls 15 and a thicker closed end 16 shaped to engage a valve seat 2, the sheath providing in the region overlying the resilient ring an annular protrusion to effect sealing between the spindle and the side walls of the tap. The protrusion shown in Fig. 1 is caused by the thin walls of the sheath overlying a protruding O-ring. Alternatively the resilient ring can be flush with or below the surface of the spindle and the protrusion can be formed on the sheath (for instance while being moulded around the spindle). The sheath is made of chemically inert material, e.g. a fluorinecontaining polymer or P.T.F.E. The spindle may be provided with a second groove and the end of the sheath with a co-operating projection to hold the sheath more securely on the spindle.
Patent GB-666628-A (GB)
Title: Production of calcium chromate
IPC: C01G37/14
Filed: 1949-12-08
Abstract: Calcium chromate is produced by a cyclic process involving (i) reacting sodium chromate and ammonium bicarbonate to produce sodium bicarbonate and ammonium chromate (2) reacting the ammonium chromate with calcium hydroxide to produce calcium chromate, and ammonia which is reacted with carbon dioxide in aqueous liquid to regenerate ammonium bicarbonate for reuse at (1), (3) roasting chromite ore, concentrates, &c. with sodium (bi)carbonate at 750 DEG -1100 DEG C in the presence of air to produce sodium chromate which is leached from the charge.  The solution so produced, or after concentration, or evaporation to dryness, is used at (1) above.  Reaction of the ammonium chromate and calcium hydroxide may be effected at the normal boiling point or at say 120 DEG -135 DEG C and 15-30 p.s.i. Specification 122,172, [Class 1(ii)], is referred to.
Patent GB-1307737-A (GB)
Title: Coated articles formed from isotactic polypropylene compositions
IPC: C08L23/12
Filed: 1970-06-30
Abstract: 1307737 Laminates NAPHTACHIMIE 30 June 1970 [1 July 1969] 31597/70 Heading B5N [Also in Divisions B2 and C3] Laminates may be prepared by bonding with epoxy resin adhesives sheets formed from (a) a mixture of 75 to 97 weight per cent of isotactic polypropylene and 3 to 25 weight per cent of a substantially amorphous copolymer of at least two olefins or at least one olefin with at least one diolefin or (b) a block copolymer containing 75 to 97 weight per cent of isotactic polypropylene blocks and 3 to 25 weight per cent of ethylene/ propylene random copolymer blocks containing at least 10 weight per cent of ethylene. In example (5) laminates are prepared from sheets of propylene/ethylene block copolymers stabilized with dilauryl thiodipropionate and octadecyl #(3,5 - di - t - butyl - 4 - hydroxyphenyl)- propionate, which have been degreased with soda lye, neutralized with sodium bisulphite and treated with phosphoric/sulphuric/chromic acid mixture before bonding with epoxy resin adhesive.
Patent GB-323081-A (GB)
Title: Improvements in or relating to coin-freed apparatus
IPC: G07F11/00
Filed: 1928-10-31
Abstract: 323,081. Stanton, G., and Greenwall, M. Oct. 31, 1928. Coin action, mechanical-connection; delivery of articles stored in piles.-A coin control mechanism, shown as arranged for the actuation of a delivery cylinder 21, Fig. 1, of a vending machine, comprises a rotatable member composed of plates 29 - - 32 riveted together through which a squared end 25 of the cylinder spindle 24 passes, the rotatable member being driven, after the insertion of a coin, by a member 49 projecting across the rotatable member and carried by a disc 47 actuated by a handle 45. A lever 34, pivoted to the plate 30, Figs. 6 and 7, is accommodated in a cut away portion of the plate 29 and has a pin engaging a cam groove in a fixed cam plate 26. One end 38 of the lever extends across the plates 30 - - 32. the other end being of arcuate formation 40, Fig. 7. A recess 39 to receive a coin is formed in the plate 31 between the plates 30, 32. When a coin 50 is inserted, and the handle 45 turned clockwise, the driver 49 presses the coin against the end 38 of the lever 34 as shown in Fig. 6, and rotates the cylinder 21. After rotation through a predetermined angle, the cam 26 rocks the lever 34, as shown in Fig. 7, to discharge the coin, the end 40 projecting to receive the thrust of the driver 49 while the end 38 enters a recess 51 in the rotatable member. After rotation through 180‹, the full revolution of the cylinder is completed by a spring 54, Fig. 8, attached to a disc 52 on the spindle 24. The disc 52 has a step 53 engaged by a spring-pressed detent 56 which is withdrawn, to allow rotation of the cylinder 21, by a toothed member 57 on a spindle 58. This spindle carries a crank pin 60 which is engaged and rocked by a cam surface 61 on the driver 49. The control mechanism is applicable to other coin-freed apparatus, such as latches, meters and the like.
Patent GB-678309-A (GB)
Title: Improved donning mechanism for ring spinning, doubling and twisting machines
Filed: 1949-12-13
Abstract: 678,309. Doffing arrangements in spinning &c. machines. T. M. M. (RESEARCH), Ltd., HAYTHORNTHWAITE, J. J., and HAIGHTON, T. Nov. 8, 1950 [Dec. 13, 1949], No. 31973/49. Class 120(ii) A ring-spinning, doubling, or twisting machine which may. incorporate doffing mechanism such as that disclosed in Specification 678,306 includes donning mechanism comprising U-shaped clips receiving a tube 15 retained by a spring-pressed plunger and forming holders 10 mounted on a common bar 11 carried by brackets 12 fixed on a shaft 13 mounted beneath the ring rail 1 and capable of being partially rotated from a loading position indicated in dotted lines in Fig. 2, to the spinning position shown, in which the winding spindles 4 are raised vertically to the uppermost limit of their movement to engage the tubes in driving relationship so that the spindles carry the tubes on their subsequent downward movement whereupon the holders are returned to the loading position. Lateral displacement of the tubes is prevented by abutment of the free ends of the tubes with a ledge 20 provided by angle-plate 19 coextensive with the bar 11 and mounted thereon by standards 18. A modification, Fig. 4, comprises cup-like sockets 21, in each of which a tube 15 is grasped by means of a spring-pressed ball 22, mounted on -levers 23 fixed to a shaft 13 which rocks the tubes into the donning position shown. Each lever 23 also carries a yarn guide 24.
Patent GB-1176770-A (GB)
Title: Substituted 2-Mercapto-4,6-Dichloro-s-Triazines
Inventor: SCHWARZE WERNER
IPC: C07D251/38
Filed: 1968-07-05
Abstract: 1,176,770. Substituted triazines. DEUTSCHE GOLD-UND SILBER SCHEIDEANSTALT. 5 July, 1968 [7 July, 1967; 30 Dec., 1967], No. 32132/68. Heading C2C. Substituted 2 - mercapto - 4,6 - dichloro - 8 - triazines of the formula where R is cycloalkyl, alkenyl, aralkyl or alkyl with 1-18 carbon atoms which may optionally be substituted by one or more -OR<SP>1</SP>, SR<SP>1</SP> or -CN groups, where R<SP>1</SP> is C 1-4  alkyl, are prepared by reacting cyanuric chloride with a mercaptan of formula H-S-R, on a mercaptide thereof, in a heterogeneous system comprising water and at least one waterimmiscible organic solvent inert to the cyanuric chloride, optionally in the presence of an inorganic hydrogen chloride acceptor (which must be present if the free mercaptan is used), with thorough mixing of the phases and at a temperature below the boiling point of the organic solvent, reduced or elevated pressures may be used if desired. Specified mercaptides are those of silver, mercury, zinc, lead and alkali metals and many suitable solvents are specified. It is desirable to use a pH value below 8, and the reaction may be carried out continuously.
Patent GB-812952-A (GB)
Title: Improvements in or relating to apparatus for comparing the intensities of radiation from two radioactive sources
IPC: H01J47/02
Filed: 1954-11-06
Abstract: 812,952. Radioactive particle testing apparatus. COLE Ltd., E. K., and DAVIS, R. G. Nov. 7, 1955 [Nov. 6, 1954], No. 32176/54. Class 40 (3). [Also in Group XL (a)] Comparison test apparatus using sources of particles, such as Beta particles, consists of two ionization chambers 2 and 3 mounted one on each side of an insulating wall 1. Means are provided supplying one chamber with a potential of (say) 200 volts and the other with a similar potential of opposite polarity. Aluminium foil windows 4 and 8 in the two chambers open respectively on to a guide 5 for the material under test (e.g. cigarette rod) and a housing 9 containing a standard sample. A radiation source 6 is,provided in conjunction with the guide 5 and a similar source 7 for housing 9. The two chambers 2 and 3 contain similar foraminous collectors 10 and 12 through each of which passes a perforated metal tube (16, 17) attached to the respective chamber walls. Screens 11 and 13, insulated from the collectors are connected together and earthed by connection to the outer braid of coaxial cable 14. Staggered openings are provided in the screens 11 and 13 and also a connecting opening in the wall 1. These openings permit the interconnection of the chambers whilst preventing radiation reaching one chamber passing to the other. The collectors 10 and 12 are joined together and also to an external measuring circuit through the centre conductor of cable 14.